baber/WOPTO huggingface dataset:
Patent GB-1452770-A (GB)
Title: Apparatus for measuring the viscosity of a fluid
IPC: G01N11/12
Filed: 1973-12-17
Abstract: 1452770 Measuring viscosity electrically SOMAC 17 Dec 1973 [15 Dec 1972] 58360/73 Heading G1N The viscosity of a liquid in a tube 1, Fig. 3, is determined by the time taken for a hollow steel ball 5 to fall from an upper detector 6 to a lower detector 7. The ball, whose density is marginally greater than that of the liquid, is forced to the top of tube 1 by opening a valve 4 to admit fluid from a conduit 2. When the temperatures in tube 1 and conduit 2 are equal, valve 4 is closed and the ball drops. Each detector 6, 7 comprises two coils 8-11, Fig. 4, producing four pulses per ball. The first pulse opens a first counter to receive clockpulses and the second pulse opens a more accurate counter, both counters being closed by the fourth pulse. The ball may alternatively be lighter than the fluid and the time taken for it to rise is measured. The apparatus is programmed to take measurements continuously.
Patent GB-1331547-A (GB)
Title: Multiplexing and demultiplexing system for telegrphic or data transmission channels
IPC: H04J3/16
Filed: 1971-12-17
Abstract: 1331547 Digital transmission; TDM systems SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 17 Dec 1971 [24 Dec 1970] 58666/71 Heading H4P A multiplexing system has separate units for performing primary multiplexing on groups of channels, each channel in a group having a same rate and code which may be different from other groups, the output from each unit being transmitted at a rate, which is a multiple mi of the base rate, to a secondary multiplexing unit which forms a frame comprising a number of bits mi. A synchronizing unit introduces a sync. bit into every frame and the sync. bits in a set of successive frames provide a frame address. Primary access units, e.g. A1 multiplex a group of lines carrying the same code end rate and forwards a multiplexed word to a secondary multiplexing unit DM at a rate miVo which is a multiple of the bit rate Vo. Unit DM has a plurality of registers Rm1 &c. each having a capacity of mi bits. A synchronizing unit SY and the registers Rm are scanned in turn and form a frame comprising the bits of all the registers, Rmo, Rm1 &c., which are transmitted at the rate equal to a product of the bit rate Vo and the number of bits in a frame. This number is chosen as the greatest foreseeable number of bits the system will have to carry and if the present number of bits is less than this filler bits S1 are inserted. At the receiver a reverse process is carried out with distribution units D1 &c. being connected to the telegraphic lines. In every frame appear mi bits from each unit A, hence if mi is chosen to be shorter than that of a multiplexed word it is necessary to use several frames to complete this word, i.e. if a word is Zi bits the number of frames necessary may be Zi/mi. After a number of frames which is a multiple of the number Zi/mi the burst of bits mi again occupies the same phase in the word. If all the output words of the access units are in an initial phase in a particular frame, then after a number of frames equal to the least common multiple of Zi/mi, all the words will be again in the initial phase which is used to characterize the beginning of a word. The numbering system adopted for the frames within a group has advantage of bringing a receiver rapidly into synchronism and reduces by a bit the length of transmission of the address of the frames. Detailed circuit arrangements are described in the Specification. In particular Fig. 3 (not shown) shows an arrangement of synchronizing counters one of which is advanced by frame pulses then counts number of frames in a group, and another group of other counters which count the individual bits in each frame together with a register in which synchronizing bits are arranged to be written.
Patent GB-1357709-A (GB)
Title: Gyratory crusher
IPC: B02C2/04
Filed: 1972-12-20
Abstract: 1357709 Gyratory crushers BARBER-GREENE CO 20 Dec 1972 [27 Dec 1971] 58972/72 Heading B2A A gyratory crusher has the concave 22 mounted on an upper frame 20 above the main frame 1 which supports the crusher head 4. A compression spring system S resiliently biasses the upper frame 20 downwardly on the main frame 1. A spring retaining ring 40 is located around the main frame 1. Threaded bolts 41 extend through the ring 40, the main and upper frame 1, 20. A first nut 45 on each bolt comprises the springs 48 of the system S between the main frame and lower spring retaining ring. A second nut 55 on each bolt is adjusted to one position where it compresses the springs 48 and permits the upper frame to be removed, e.g. for service to the concave. When the second nut is adjusted to a second position the springs are permitted to bias the assembly through the bolts, the first nuts and the ring downwardly on the main frame.
Patent GB-1277120-A (GB)
Title: Ignition circuits for arc discharge lamps
Inventor: TYLER TOMMY N
IPC: H05B41/04
Filed: 1969-12-12
Abstract: 1277120 Starting circuits for discharge lamps HONEYWELL Inc 12 Dec 1969 [16 Dec 1968] 60709/69 Heading H2H A starting circuit, particularly for a high pressure mercury vapour lamp, comprises a switch which operates to discharge a capacitor into a pulse transformer, thus supplying a starting pulse to the lamp by way of a spark gap. A voltage sensor ensures that, when the lamp is ignited, further ignition pulses are not produced. In the circuit shown, an A.C. supply, connected to an input transformer 2, is rectified by a bridge 8 and charges a capacitor 31, the lamp 17 being initially non-conductive. After a certain time, the voltage on capacitor 31 is sufficient to break down a symmetrical diode 32 and fire a thyristor 23. At the same time as the capacitor 31 is being charged, a further capacitor 22 is also charging through a diode 25, and this capacitor 22 is now discharged through the thyristor 23 into the primary winding 18 of a pulse transformer 27. The pulse produced in the secondary winding 19 causes a spark across a gap 34, the energy of which serves to ignite the lamp 17. The thyristor 23 is turned off by polarity reversal caused by the resonant circuit of winding 18 and capacitor 22. When the lamp is running, the capacitor 31 charges only up to the lamp voltage,  which is arranged to be less thanthe breakdown voltage of diode 32, so that no further firing signals are received by the thyristor 23 unless the lamp is extinguished.
Patent GB-1300938-A (GB)
Title: Apparatus for continuous and semicontinuous casting of metals
Inventor: GETSELEV ZINOUY NAUMOVICH
IPC: B22D11/01
Filed: 1969-12-16
Abstract: 1300938 Continuous casting ORDENA TRUDOVOGO KRASNOGO ZNAMENI KUIBYSHEVSKY METALLURGICHESKY ZAVOD IMENI V I LENINA 16 Dec 1969 61176/69 Heading B3F Apparatus for the continuous casting of metal includes an annular electromagnetic inductor 1 coaxial with an annular electromagnetic screen 12 of non-magnetic material such as steel, Al or Cu, the lower edge 14 of the screen, e.g. at least 1 mm. thick, being at about the level of the median plane of the inductor 1 and the thickness of the screen increasing upwardly in order to match the electromagnetic forces to the metallostatic pressures. As in Specification 1,157,977, the metal fed from holes 7 in a distributing cup 5 on to a lowerable starter-pan 9 is confined and shaped by forces set up in the metal by the inductor 1, until it is solidified by cooling water from an annular outlet 15 bounded by a header 10 and the screen 12. A raisable water-cooled annular Cu tube 13 within the screen lowers the intensity of the magnetic field in the upper portion of the casting and is said to reduce surface defects. The height of the metal-shaping apparatus is adjustable by screws 11.
Patent GB-734034-A (GB)
Abstract: 734,034. Reciprocating pumps. JOHNSON (MACHINERY), Ltd., C. H. Nov. 19, 1953 [Nov. 19, 1952], No. 29174/52. Class 102 (1). [Also in Group XXIII] The lower part of a power-driven rammer or pile driver is utilized to hold lubricant and contains an inertia-operated pump which delivers lubricant to the power cylinder when the rammer or pile driver strikes the ground or pile. As shown, the casing 1 of a rammer containing lubricating oil has a pump 9 comprising a rigid stem 9a, 9b having a non-return valve 14 between the two parts, and a plunger 19 carrying a non-return valve 25 on the other end of the part 9b. A sleeve 17 forming the cylinder of the pump is free to slide on the stem 9b, the downward stroke, due to the inertia of the sleeve when the rammer strikes the ground, forcing oil from a chamber 18 through an outlet 20, the non-return valve 14, an outlet groove 11 in the part 9a to a pipe 34 leading to the power cylinder. A spring 27 returns the sleeve 17 during which movement oil enters the chamber 18 through the non-return valve 25. The pump may be operated by a pedal 32 when the engine of the rammer is not in operation. Specification 544,260, [Group XXIII], is referred to.
Patent GB-2000961-A (GB)
Title: Apparatus for removing the layer of fat from chops
IPC: A22C17/02
Filed: 1978-06-15
Abstract: An apparatus for removing or separating the layer of fat from chops comprises a knife 12, curved in accordance with the curvature of the layer of fat, and a support for the chops. The knife and the support are movable with respect to each other in the longitudinal direction of the chops. The support comprises a continuous conveyor belt 3 of elastic material provided with knubs 4. The knife 12 is in the form of an arc of a circle pivotable about its centre of curvature in a plane perpendicular to the direction of movement of the conveyor belt by means of a driving device. A clamping device 23 for the chops is disposed before the knife above the conveyor belt. A first driven conveyor roller 33 is disposed above the conveyor belt upstream of the chop clamping device to assist forward movement of the chop and a second driven conveyor roller 34 is disposed above the conveyor belt and downstream of the knife whereby the chop is stretched to prevent formation of corrugations. <IMAGE>
Patent GB-2023854-A (GB)
Title: Photographic apparatus
IPC: G03B27/62
Filed: 1978-06-22
Abstract: An original to be photographed by a step-and-repeat camera 26 is carried by a board 33 on a table 11; the board and table having cooperating pins and holes 31 which enable the board to be located on the table in either of two mutually perpendicular directions. As described, the camera has film stepping motors operated by pulses, the number of which can be pre-set to determine frame size. Means are provide for blanking out specific areas to accommodate title placement or other identification, spacing between successive sets of materials, and so forth. Visual means are provided for identifying a particular frame about to be exposed, and also for separately identifying successive exposures on the film itself. Also described are a vacuum platen that accurately positions the film for exposure, film spool and take-up cartridges, and a photoelectrically controlled shutter. <IMAGE>
Patent GB-2002089-A (GB)
Title: A crank assembly for a cycle
IPC: B62M3/00
Filed: 1978-06-30
Abstract: The invention provides a crank assembly for a cycle, the assembly comprising a crank shaft 1, two crank arms 2, (3) fixed one to each end of the crank shaft, two retaining members 4 screw-threadedly engaged with engagement portions at the ends of the crank shaft, so holding the crank arms in position on the shaft, and two locking members 5 engaged with the crank arms and restricting axial movement of the retaining members relative to the crank arms. <IMAGE>
Patent GB-2025379-A (GB)
Title: Dispensing head for collapsible tube containers
IPC: B65D47/30
Filed: 1978-07-12
Abstract: A dispensing head for a container, particularly a collapsible tube container, has a preferably cylindrical bore 4 therethrough, into in which fits a stopper 7 which is rotatable between a first position in which an opening 8 connects the outside of the dispensing head with an opening 3a into the container, and a second position in which the container is closed off. The opening through the stopper member contains a valve member, preferably a ball 9, which is movable between a first position adjacent the container opening 3a in which it serves as a pusher and a second position adjacent the opening 5 to the outside of the dispensing head in which it acts as a seal. <IMAGE>
Patent GB-2002964-A (GB)
Title: High voltage isolator
IPC: H01H31/28
Filed: 1978-08-16
Abstract: A high-voltage isolator, comprises two posts, with a fixed contact on one and a switch arm 5 carrying the moving contact pivoted on the other by means of a driving head for converting rotation of a drive about an axis parallel to the posts into pivotal motion of the switch arm about an axis perpendicular to the posts, the moving contact including contact springs 14 and a lever system 27 for urging them against lugs 11 on the fixed contact 4 in the make position, the operation of the lever system taking place only after the switch arm 5 has been pivoted into the "closed" position. <IMAGE>
Patent GB-2030632-A (GB)
Title: Borehole Plug
IPC: E21F17/18
Filed: 1978-09-26
Abstract: A probe or plug comprises a cylindrical member, e.g., a bullet shaped head (1) and a cylindrical base (2), a flexible annular flange 10, a gas conduit (3) extending through the base (2) and head (1) ending in a series of inlets (4), a grout conduit (6) extending through the base (2) and connected to a series of outlets (7) which is separated from the inlets (4) by a rubber flange (10) which abuts the wall of the borehole (14) tightly. The probe is sealed into the borehole (14) by pumping grout through the grout conduit (6) the flange (10) preventing the grout from entering the inlets (4). Gas which accumulates around the head (1) is withdrawn through the gas conduit (3) and analysed. <IMAGE>
Patent GB-2006403-A (GB)
Title: Ignition of Pyrotechnic Devices
IPC: F41A19/70
Filed: 1978-10-23
Abstract: A pyrotechnic device, for example a flare 1 having a propulsion system 2 with a pyrotechnic charge 3, is equipped with an ignition device comprising a central electrode 8 provided by a conventional spark plug 9 and projecting into a central channel 6 of the charge 3, and a hollow peripheral unit 10 threadedly connected to the spark plug 9 and constituting a peripheral electrode. The charge is provided with opposed radial perforations 7a, 7b through which the spark passes between the electrodes 6, 10 to ignite the charge An O-ring seal 12 located in a groove 11 with a conical bottom serves to retain the flare until a predetermined pressure is reached. Suitable electrical ignition circuits are illustrated in Figures 2 and 3. <IMAGE>
Patent GB-2032762-A (GB)
Title: Safety pin
IPC: A44B9/12
Filed: 1978-10-25
Abstract: A safety pin comprising first and second portions interconnected at one end, the first portion 14 having at its free end a protective head 12 for receiving the free end 111 of the second portion 11 and holding means formed by looping the wire of the first portion into a clip for attaching the safety pin to an article independently of the second portion. <IMAGE>
Patent GB-2010856-A (GB)
Title: Flame and smoke retardant polyvinyl chloride resin compositions
IPC: C08L21/00
Filed: 1978-12-19
Abstract: Polyvinyl chloride resin compositions having improved flame- retardancy contain (A) a hydroxide of a Group II, III or VIII metal or a borate or silicate of a metal containing water of crystallisation in combination with (B) powdery copper metal or a copper compound, and, optionally, (C) an inorganic or metallic fibrous material.
Patent GB-2012072-A (GB)
Title: Photoelectric exposure meter
IPC: G01J1/42
Filed: 1979-01-03
Abstract: A photoelectric exposure meter is in the form of a device for checking and selecting the correct exposure when using a graphic art camera. It is a hand-held unit the casing (1) of which can be placed on a transparent or translucent plate at the back of the camera and on to which the camera image is focussed. The back of the casing (1) has a viewing lens (3) through which a magnified target area of the image can be selected and viewed, this area being defined by index lines (5) on a transparent window (4) at the back of the casing (1). A probe (7) carrying a photoresistive cell is movable from a resting position clear of the target area to an operative position in which the cell is in the target area. An electrical circuit contains the cell and includes a potentiometer P1 the adjustment of which for a null indication by a moving coil meter M1 provides an indication of the intensity of illumination of the cell and hence of the target area. <IMAGE>
Patent GB-2040173-A (GB)
Title: Fish-plate for model railway track
IPC: A63H19/30
Filed: 1979-01-30
Abstract: A fish-plate of channel shaped cross section for connecting adjoining rails of adjoining sections of a model railway track is reinforced against distortion or failure by folding over, at the ends of the channel, parts of the metallic sheet from which the fish-plate is made. Preferably the sides (2) of the channel have curled margins and the ends (1a) of the base (1) of the channel are folded over upon themselves. There is also proposed a method of manufacturing a fish-plate with folded over base and side parts at each end of the channel as aforesaid. <IMAGE>
Patent GB-2012575-A (GB)
Title: Applicators for dispensing containers
IPC: A46B11/00
Filed: 1979-02-06
Abstract: An applicator for a liquid dispensing container comprising a body 1, a dispensing duct 8 through said body, and applicator means 4, which may comprise a brush or pad, attached to the body adjacent the discharge end of the dispensing duct and so arranged that part of said applicator means extends generally parallel to the axis of the duct and part of said applicator means is inclined to the axis of the duct so as to intercept a liquid jet issuing from the discharge end of the dispensing duct at a location spaced apart from said discharge end. <IMAGE>
Patent GB-2016369-A (GB)
Title: Base material for use in the production of printed circuits and process for the production thereof
IPC: H05K1/03
Filed: 1979-03-08
Abstract: A base material for use in the production of a printed circuit is disclosed which exhibits improved adhesion between the carrier sheet or sheets thereof and the core sheets thereof and which allows improved bonding between metal deposited thereon electrolessly subsequently for use in the formation of the printed circuit and the carrier sheet or sheets. This desirable character is achieved by modifying the conventional practice of impregnating the carrier sheet(s) with a resin solution prior to application of a rubber-based adhesive thereto to include a second impregnation step in which impregnation is effected using a mixture of a self-curing acrylic resin and a phenol-resol resin and then drying the second impregnating composition prior to applying the rubber-based adhesive composition.
Patent GB-2024436-A (GB)
Title: Measuring capacitance in direct and reverse directions of repeatered cable &c
IPC: G01R27/26
Filed: 1979-06-27
Abstract: The capacitance of a device 107 such as a submarine repeatered coaxial cable having diodes which render unequal the direct and reverse impedances is measured in both directions by providing a reversible constant current source 105,106 and measuring the rise and fall times of the voltage between two threshold levels. Charging firstly takes place from current source 105, and comparator 108 identifies when the two threshold levels are crossed, the interval so defined being measured by a counter 110 and displayed digitally 114. The converse takes place when relays 101,102 are switched and the cable is discharged by source 106. The two results are then averaged.   <IMAGE>
Patent GB-792807-A (GB)
Abstract: 792,807. Bird cages. REID, A. Feb. 27, 1956 [Nov. 25, 1954], No. 34206/54. Class 5(2). A bird cage comprises a detachable front having upper and lower wires 13 and 14 engaged in spring clips 5 and 6 respectively which are mounted on the body of the cage the upper clips face downwardly and having inserted the wire 13 therein, the cage front is rotated about the pivot so formed until the wire 14 engages in the spring clips 6 which face forwardly.
Patent GB-2032152-A (GB)
Title: Travelling Wave Digitizer
IPC: G06F3/033
Filed: 1979-08-28
Abstract: A digitizer shifts long and short wavelength square waves across x and y grids in a platen to perform upon a cursor signal time measurements that represent coarse and fine cursor position data. The periodic staircase cursor signal is filtered before use to permit time measurements that resolve cursor positions to locations between lines in the grids. The contribution of the filter to the coarse and fine time measurements is obtained in a special reference measurement, so that it may be removed. A processor combines these data into Cartesian coordinates, and implements procedures for error reduction. These include averaging of consecutive time measurements, dynamic adjustment of a timing reference to remove ambiguities inherent in measuring very small or very large cyclic quantities, and correction of coordinates for the effects of cursor motion during measurement and for any non- perpendicularity of the x and y grids. <IMAGE>
Patent GB-2039983-A (GB)
Title: Automatic deadlock
IPC: E05B63/20
Filed: 1979-09-07
Abstract: An automatic deadlock has a release 31 latch which holds a bolt in a retracted position. A locking member 21 is provided which is moved on closure of the door, the movement releasing the release latch to allow the bolt to shoot under the action of a compressed spring 26. Retraction is prevented by pawl 29. Released by arm 25 on lock 22. <IMAGE>
Patent GB-2039521-A (GB)
Title: Agricultural discs and coulter blades
IPC: C21D9/00
Filed: 1979-10-02
Abstract: The invention is an agricultural disc or coulter blade formed from a steel containing sulphur or sulphides into which there has been incorporated sufficient of a rare earth element or elements or at least one other sulphide shape modifying element to form sulphides of substantially globular form. A particularly useful steel has a composition, by weight, substantially as follows:-  0.6 to 1.2% carbon;  up to 0.35% silicon;  up to 0.02% sulphur;  up to 0.05% phosphorus;  0.5 to 1.5% mangenese;  up to 1.0 chromium; up to 0.10% rare earth element or other sulphide shape modifying element. The disc is made by gradually and uniformly heating a blank of the modified steel in a furnace to a temperature whereat it can be formed, forming said blank into the desired disc shape, and quenching the thus formed article.
Patent GB-2060106-A (GB)
Title: Quick Release Tube Coupling
IPC: F16L37/091
Filed: 1979-10-10
Abstract: In a tube coupling of the kind having a body formed with a socket 3 for receiving an end portion of a tube 12 and a retaining ring 13 in the socket which grips and/or bites into the surface of the tube to retain it in the socket, an annular releasing member 20 is provided whereby a retained tube can be quickly released from the socket. The releasing member 20 is axially movable relative to the body 1 to cause an abutment part or parts 24 of the member, acting through the intermediary of a sealing ring 19, to deflect the retaining member out of engagement with the tube. The sealing ring 19 seals the connection of a tube to the coupling as soon as the tube is pushed through it, and because the retaining member engages with the tube after the sealing ring it cannot cause marking at the part of the surface of the tube engaged by the sealing ring which could impair the effectiveness of the seal. Preferably a spacer 17 is interposed between the sealing ring 19 and retaining ring 13 which co- operates with the teeth or like parts of the retaining ring to cause them to be deflected out of engagement with the tube when the releasing member is operated. At the opposite side of the retaining ring to the sealing ring there may be a further sealing ring (not shown) which may also be separated from the retaining member by a spacer. <IMAGE>